638664502

素因数分解:

$2^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{680879}}^1$

素因数の和:680955

約数の個数: 16

約数和(自身を含む): 1111196160

約数和(自身を除く): 472531658

約数列:

[1, 2, 7, 14, 67, 134, 469, 938, 680879, 1361758, 4766153, 9532306, 45618893, 91237786, 319332251, 638664502]

約数ペア:

[(1, 638664502), (2, 319332251), (7, 91237786), (14, 45618893), (67, 9532306), (134, 4766153), (469, 1361758), (938, 680879)]